CN212362069U

CN212362069U - Heat-preservation and corrosion-prevention chimney structure

Info

Publication number: CN212362069U
Application number: CN202021039116.3U
Authority: CN
Inventors: 王泳; 朱梓青; 尚豪东; 李娜
Original assignee: Suzhou Rainbow Environmental Equipment Co ltd
Current assignee: Suzhou Rainbow Environmental Equipment Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-01-15
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a heat preservation anticorrosive chimney structure. The technical scheme of the utility model is that: the chimney section comprises an inner barrel and an outer barrel, a plurality of layers of wing plates are arranged on the inner wall of the outer barrel from top to bottom, bolt holes are formed in the wing plates, angle steel rings corresponding to the wing plates are arranged on the outer wall of the inner barrel and connected with the wing plates through bolts, an annular pasting plate protruding out of the bottom of the outer barrel is arranged at the bottom of the inner barrel and can be inserted into the top of the inner barrel and connected with the inner wall of the inner barrel in an adhering mode, flat plate flanges are respectively arranged at the top and the bottom of the outer barrel, bolt holes are formed in the flat plate flanges, connection between every two adjacent outer barrels is achieved through matching of the flat plate flanges and the bolts, sealing strips are arranged between the two flat plate flanges in contact. The utility model provides a scheme is sealed and keep warm effectual, installation cycle is short and long service life.

Description

Heat-preservation and corrosion-prevention chimney structure

Technical Field

The utility model relates to a chimney technical field, in particular to heat preservation anticorrosive chimney structure.

Background

At present, a gap of more than 150mm needs to be reserved between an inner cylinder and an outer cylinder of a self-supporting steel chimney of a sleeve to form an air layer, the air layer can effectively reduce the heat transfer efficiency, but the overlarge gap of the air layer can lead to the overlarge diameter of the outer cylinder, the strength of the inner cylinder of the large-diameter chimney needs to be guaranteed by arranging a reinforcing plate and a steel plate, the cost is increased, in addition, the problem of water leakage and smoke leakage of the chimney used in the desulfurization and denitrification process is frequently caused, and the service life and the safety of the chimney are.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model discloses a main aim at provides a sealed with keep warm effectual, installation cycle is short and long service life's chimney structure.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a heat preservation anticorrosive chimney structure, includes a plurality of sections chimney sections, the chimney section includes inner tube and urceolus, be provided with a plurality of layers of pterygoid lamina from last to down on the inner wall of urceolus, be provided with the bolt hole on the pterygoid lamina, be provided with on the outer wall of inner tube with the pterygoid lamina corresponds the angle steel ring that sets up, the angle steel ring passes through bolted connection with the pterygoid lamina, the bottom of inner tube is provided with the annular flitch of protrusion urceolus bottom, the annular flitch can be inserted and establish the inner tube top and be connected with the laminating of inner tube inner wall, the top and the bottom of urceolus are provided with the flat flange respectively, be provided with the bolt hole on the flat flange, realize connecting through the cooperation of flat flange and bolt between two adjacent urceol.

Preferably, a sealing groove for placing a sealing ring is formed in the annular pasting plate.

Preferably, a ceramic isolation cushion plate is arranged between the wing plate and the angle steel ring.

Preferably, the wing plate is provided with a high temperature resistant layer.

Preferably, the lap joint height of the annular flitch is 120-250 mm.

Preferably, the plurality of layers of wing plates are arranged at equal intervals.

Compared with the prior art, the utility model has the advantages that the problem of low temperature flue gas leakage is solved, and the service life of the flue gas is prolonged; the caliber of the outer cylinder is reduced, and the transportation difficulty of a large-caliber chimney is reduced; the inner cylinder is in socket joint connection, the production process is convenient and quick, and the installation period of the on-site chimney is greatly shortened; the heat preservation and the weight of the inner cylinder are uniformly distributed on the outer cylinder, the fatigue limit of the chimney is reduced, and the service cycle of the chimney is prolonged.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is a schematic structural view of the junction of two chimney sections.

In the figure: 1. a chimney section; 2. an inner barrel; 3. an outer cylinder; 4. a wing plate; 5. an angle steel ring; 6. a bolt; 7. an annular pasting plate; 8. a flat flange; 9. a sealing strip; 10. an aluminum silicate heat-insulating layer; 11. a ceramic isolation backing plate; 12. a high temperature resistant layer; 13. sealing the groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, a heat-insulating and corrosion-resistant chimney structure comprises a plurality of chimney sections 1, wherein each chimney section 1 comprises an inner barrel 2 and an outer barrel 3, a plurality of layers of wing plates 4 are arranged on the inner wall of the outer barrel 3 from top to bottom, bolt holes are formed in the wing plates 4, an angle steel ring 5 corresponding to the wing plates 4 is arranged on the outer wall of the inner barrel 2, the angle steel ring 5 is connected with the wing plates 4 through bolts 6, an annular pasting plate 7 protruding out of the bottom of the outer barrel 3 is arranged at the bottom of the inner barrel 2, the annular pasting plate 7 can be inserted into the top of the inner barrel 2 and is connected with the inner wall of the inner barrel 2 in a pasting manner, flat flanges 8 are respectively arranged at the top and the bottom of the outer barrel 3, the bolts 6 are arranged on the flat flanges 8, the adjacent two outer barrels 3 are connected through the matching of the flat flanges 8 and the bolts, an aluminum silicate heat-insulating layer 10 is arranged between the inner cylinder 2 and the outer cylinder 3.

Preferably, a sealing groove 13 for placing a sealing ring is arranged on the annular patch 7. The arrangement can ensure the connection tightness between the inner cylinders 2.

Preferably, a ceramic isolation pad 11 is arranged between the wing plate 4 and the angle steel ring 5.

Preferably, the wing plate 4 is provided with a high temperature resistant layer 12.

Preferably, the height of the annular flitch plate 7 is 120-250 mm.

Preferably, the plurality of layers of wing plates 4 are arranged at equal intervals. The advantage of setting up like this is that the aluminium silicate heat preservation 10 and the inner tube 2 weight evenly distributed are on the urceolus 3, reduce the fatigue limit of chimney, increase chimney life cycle.

According to the scheme, each section of the chimney section 1 is about 8-16 meters, the chimney is divided into an inner barrel 2 and an outer barrel 3, the chimney is manufactured into a whole by a factory, and then the chimney section 1 is installed on site. The outer cylinder 3 is made of carbon steel or special steel materials, the inner cylinder 2 is made of special steel plates, including stainless steel, acid-resistant steel, titanium plates and other special metal materials or other materials suitable for the smoke working condition, and the thickness is 2-16mm, so that the structural strength is guaranteed, and the anti-corrosion function is achieved. This scheme is through setting up aluminium silicate heat preservation 10 and replacing the air bed, can reduce the clearance between inner tube 2 and the urceolus 3 to the diameter of urceolus 3 has been reduced, has reduced the transportation difficulty.

The connection between the chimney section 1 and the chimney section 1 is connected through an integral flat flange 8, the wing plate 4 with the bearing effect is arranged on the inner side of the chimney outer barrel 3, a strip bolt 6 hole is generally formed in the inner side, an angle steel ring 5 is arranged on the outer side of the chimney inner barrel 2, the angle steel ring 5 is connected with the wing plate 4 through a high-strength bolt 6, a 2-4 mm ceramic isolation base plate 11 is padded between the angle steel ring 5 and the wing plate 4, a high-temperature-resistant coating is coated on the wing plate 4, and the anti-deformation effect is achieved.

The inner cylinder 2 is welded on the angle ring 5, the distance between the angle rings 5 is set according to 500-1500 mm, an aluminum silicate heat-insulating layer 10 is arranged between the inner cylinder 2 and the outer cylinder 3, the thickness of the aluminum silicate heat-insulating layer 10 is 50-150 mm, and the heat-insulating effect is guaranteed. The lower port of the inner cylinder 2 is welded with an annular flitch 7 made of the same material of the inner cylinder 2, and the annular flitch 7 extends out of a flange of the outer cylinder 3 by 120-250 mm.

When the sealing strip is installed, the sealing strip 9 is placed between the flat flanges 8 of the outer cylinder 3, and the sealing performance is further ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a heat preservation anticorrosive chimney structure which characterized in that: including a plurality of sections chimney sections, the chimney section includes inner tube and urceolus, be provided with a plurality of layers of pterygoid lamina from last to down on the inner wall of urceolus, be provided with the bolt hole on the pterygoid lamina, be provided with on the outer wall of inner tube with the pterygoid lamina corresponds the angle steel ring that sets up, the angle steel ring passes through bolted connection with the pterygoid lamina, the bottom of inner tube is provided with the annular flitch that protrudes urceolus bottom, the annular flitch can insert establish the inner tube top and be connected with the laminating of inner tube inner wall, the top and the bottom of urceolus are provided with dull and stereotyped flange respectively, be provided with the bolt hole on the dull and stereotyped flange, realize connecting through the cooperation of dull and stereotyped flange and bolt between two.

2. A heat insulating and corrosion preventing chimney structure according to claim 1, characterized in that: and a sealing groove for placing a sealing ring is arranged on the annular pasting plate.

3. A heat insulating and corrosion preventing chimney structure according to claim 1, characterized in that: and a ceramic isolation base plate is arranged between the wing plate and the angle steel ring.

4. A heat insulating and corrosion preventing chimney structure according to claim 1, characterized in that: the wing plate is provided with a high temperature resistant layer.

5. A heat insulating and corrosion preventing chimney structure according to claim 1, characterized in that: the lap joint height of the annular flitch is 120-250 mm.

6. A heat insulating and corrosion preventing chimney structure according to claim 1, characterized in that: the plurality of layers of wing plates are arranged at equal intervals.